<main class="container">
  <section class="slideshow">
    <div class="slide"></div>
    <div class="slide"></div>
    <div class="slide"></div>
    <div class="slide"></div>
    <div class="slide"></div>
    <div class="slide"></div>
    <div class="overlay">
      <h1>Pure CSS Image Slider</h1>
    </div>
  </section>
</main>